Oceanida

Oceanida
Shell of Oceanida graduata. Origin: Guadeloupe, syntype at National Museum of Natural History, France
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Vanikoroidea
Family: Eulimidae
Genus: Oceanida
de Folin, 1870
Type species
Oceanida graduata
de Folin, 1871
Synonyms
  • Athleenia Bartsch, 1946
  • Spiroclimax Mörch, 1875

Oceanida is a genus of very small parasitic sea snails, marine gastropod mollusks or micromollusks in the family Eulimidae.

This genus was described by Léopold de Folin in 1870. These are subtidal snails that are parasitic on echinoderms. Their length varies between 2 and 3 mm.

Description

(Originally described in Latin as Spiroclimax) The shell exhibits a subcylindrical form, characterized by transparency and a suture that resembles a gently descending spiral staircase. The aperture displays an auriculate shape. The outer lip is thickened, featuring a sigmoidally margined profile that curves inward towards the suture. The columella is moderately thick, adorned with a funicular cord and exhibiting minimal plication. The protoconch is polished and positioned at a right angle.

Species

Species within this genus include:

Species brought into synonymy

References

  1. 1 2 3 Oceanida de Folin, 1870. Retrieved through: World Register of Marine Species on 5 January 2019.
  2. ↑ Mörch, O.A.L. (1875). "Synopsis molluscorum marinorum Indiarum occidentalium imprimis insularum danicarum". Malakozoologische Blätter. 22: 168. Retrieved 12 February 2025. Public Domain This article incorporates text from this source, which is in the public domain.